3-phase rectifier transformer for induction heating furnace...
1 Top 1 in China
2 ISO9001, ISO14001, CE
3 Apply for IEC, ANSI
Brief specification.
1 for electrochemical industry
This is the application of the most rectifier transformer industry, electrolysis non-ferrous metal compounds for making aluminum, magnesium and copper and other metal; Electrolysis to making salt were; The electrolysis of water to making hydrogen and oxygen.
2 traction with dc power
Used for mining or city of dc power grid electric locomotive. Because the side by aerial, the fault is more, dc load change of convergence, electric locomotive often start, cause different degrees of short-term overload. So it's kind of transformer is the rise of temperature of the current density and has achieved is low. Impedance ratio of power transformer corresponding big around 30%.
3 transmission with dc power
Mainly used for power transmission of dc motor power supply, such as rolling mill armatures and excitation.
4 HV DC use
This kind of rectifier transformer voltage is in commonly 110 kV above, capacity in the tens of thousands of kva. Special attention should be paid to the insulation of ac, dc superimposed problem. In addition to electroplating use or electric processing with dc power, excitation in dc power, charging and static dust removal with with dc power supply, etc.
Widely used in industrial charging, dc lighting, dc excitation, electrolytic electroplating, electric drive, ZSG series rectifier transformer has small volume, light weight, simple maintenance, reliable operation, etc.
Typical projects
1.12.5MVA 22KV RECTIFIER TRANSORMER EXPORTED TO KOREA - POSCO
| Type |
Rated Power (kVA) |
Rated Voltage (Line Side) V |
Rated Voltage (Valve Side) V |
Connection Symbol |
Active Part Weight (kg) |
Oil Weight (kg) |
Total Weight (kg) |
Overall Dimension (L*W*H) (mm) |
| ZSSP-800/10 |
800 |
10000 |
400 |
Dyn11 |
1580 |
660 |
3240 |
2160*1625*1855 |
| ZSSP-2000/35 |
2000 |
35000 |
400 |
Yyn0 |
3320 |
1280 |
5735 |
2600*1260*2740 |
| ZSSP-4000/35 |
4000 |
35000 |
950 |
Dd0y11 |
5410 |
2040 |
9540 |
2570*1745*2720 |
| ZSSP-6300/35 |
6300 |
35000 |
1000 |
D( ±7.5 °)dyn |
8600 |
4860 |
18260 |
3340*1875*3370 |
| ZSSP-7000/35 |
7000 |
35000 |
950 |
Dd0y11 |
8570 |
3390 |
14700 |
3185*985*3475 |
| ZSSP-8000/22 |
8000 |
22000 |
950 |
Dd0y11 |
8640 |
3340 |
14710 |
3210*1905*3375 |
| ZSSP-8000/35 |
8000 |
35000 |
950 |
Dd0y11 |
9170 |
3590 |
15520 |
3340*1870*3490 |
| ZSSP-9000/35 |
9000 |
35000 |
950 |
Dd0y11 |
9920 |
4070 |
15740 |
3240*1915*3720 |
| ZSSP-10000/35 |
10000 |
35000 |
1000 |
D( ±7.5 °)dyn |
11090 |
4400 |
18850 |
3410*1915*3845 |
Transformer Characteristics
Winding .
The winding must be especially protected - both against high electrical stress due to
external over voltages and against mechanical overloads by short circuits. They are made of copper or aluminum. Low-voltage windings are made of strip or flat wire while
high voltage windings are manufactured from round or profile wire. ("diamond-dotted paper") bonds the winding into a compact block
while drying and increases the short-circuit capacity additionally.
Magnetic Core lamination.
The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel lamination insulated on both sides,
guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a
flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise.
Oil tank.
Whether during transport or operation -the tank must be absolutely tight under mechanical stress. We have vast constructional experience, the most modern calculation methods and high-quality welding work. Special attention is paid to
corrosion protection. Pretreatment of the surface is processed by phosphating pickling, contributes to corrosion protection, just
like multi-coating with preset drying times for each layer. On request, hot-dip galvanization provides for even better protection
Test lab
Testing are conducted for every transformer before delivery.Tests are classified to be routine tests and type test.
A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers
a- Measurement of winding resistance .
b- Measurement of voltage ratio and check of phase displacement.
c- Measurement of short circuit impedance and load losses.
d-Measurement of no-load losses and current .
e-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) .
B - Type tests :
The following tests shall be carried out
a- Temperature rise test
b- Lightning impulse test
C - Special tests :
a- Determination of noise level according to IEC 60551 .
b- Oil leakage test
c- Overload test at 150 % rated current for one hour after temperature rise test ( top oil temperature rise and winding temperature rise must be measured and recorded in the report test also hot spot temperature rise must be calculated and recorded on the report test ) .
d- Short Circuit Dynamic stability Test (test report from independent and accredited laboratory for similar transformer will be accepted).
Packaging and transportation
Company Introduction
SHENDA electric group is a manufacturer and wholesale company that manufactures good & high quality electric transformers from 2000. The company provides the customized products and OEM service. The factory own the 3 production base worldwide,2 in China and 1 in USA.We also own a transformer research institute with more than 30 electric engineers .
Our Services
1. Pre-Sale Service
- Quick response: reply you within 8 hours, to save your time.
- Professional solution: supply professional completed solution base on your technical requirements, to complete your technical plan.
- Quoataion: submit a competive price within 2 days, to promote your business
2. In Sale Service
- Supplying stipulated completed drawings
- Supplying manufacturing plan and processing photos
- Making the test plan and book hotel for the witness person
- Making good arrangement of the delivery and shipment
3. Afer Sale Service
- Supplying professional supervision and commissioning within 15 days
- Training the workers
- Providing 12 months waranty of quality and perforance
RFQ
| 1,Q: |
Are you manufacturer?
|
| A: |
Yes, we are manufacturer. Our factory is in JiangShan City, zhejiang Province.
|
| 2,Q: |
What is your delivery time ?
|
| A: |
Depend on the type of transformer.
|
| 3,Q: |
What is your payment term?
|
| A: |
30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it.
|
| 4,Q: |
Are your transformers supported for customization ?
|
| A: |
Yes, of course. We can design and produce accroding to the technical requirements and parameters of customers.
|
| 5,Q: |
Do you offer guarantee for the products?
|
| A: |
Yes. Different transformers is different. We offer at least one year guarantee for all of our transformers.
|
| 6,Q: |
Do you accept Factory Acceptance Test?
|
| A: |
Yes. It's available. And we are responsible for each set transformer's testing (ICE).
|
| 7,Q: |
Do you assign engineer for after-sale service?
|
| A: |
Yes. For our products,we all provide after-sale installation instructions service
|
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